Click the battery icon to display the percentage of battery power remaining and change the power mode. The
computer displays a warning message when the battery is low.
Charge the battery
When you find that the remaining battery power is low, charge your battery by connecting your computer to
ac power.
The battery is fully charged in about four to eight hours. The actual charging time depends on the battery
size, the physical environment, and whether you are using the computer.
Battery charging is affected by its temperature. The recommended temperature range for charging the
battery is between 10°C (50°F) and 35°C (95°F).
To check the battery temperature:
1. Open Lenovo Vantage. See “Accessing Lenovo programs” on page 11.
2. Click Hardware Settings ➙ Power.
3. Locate the Power Status section and then click Show Details to view the battery temperature.
Notes:
• To maximize the life of the battery, the computer does not start recharging the battery if the remaining
power is greater than 95%.
• If the power adapter shipped with your computer supports the rapid charge function, the battery is 80%
charged in about 1 hour when the computer is turned off.
Set a power plan
To view the current power plan, click the battery icon. To achieve the best balance between performance
and power saving, adjust your power plan settings.
1. Right-click the battery icon and select Power Options.
2. Choose or customize a power plan as you preferred.
Maximize battery life
Tips to conserve battery power and maximize the battery life:
• Lower the brightness of the computer display.
• Turn off the wireless features when not used.
• Use the battery until the charge is depleted.
• Recharge the battery completely before using it. You can see whether the battery is fully charged from the
battery-status icon in the Windows notification area.
• Always use power management features.
Managing the battery power
To achieve the best balance between performance and power saving, adjust your power plan settings. To
adjust power plan settings, do the following:
1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small
icons.
2. Click Power Options.
3. Follow the instructions on the screen.
Chapter 2. Using your computer 23
